Through the adjust of the vitriol-chrome-acid and trivalence chromic,can from the net contain additive common chromeplate liquid gain wide bright electric current density bound;
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美
- 通过对硫酸铬酸比和三价铬的认真调整,能从不含添加剂的普通镀铬液获得宽的光亮电流密度范围;